Many state departments of transportation are seeking ways to improve the way they address greenhouse gas (GHG) emissions and climate change effects in environmental reviews. NCHRP WebResource 3: GHG Emissions and Climate Change in Environmental Reviews , from TRB's National Cooperative Highway Research Program, provides tools, methods, and resources to support the consideration of GHG emissions...

Many states are exploring road usage charge (RUC) programs as they seek sustainable alternatives to the fuel tax. NCHRP WebResource 2: Road Usage Charge Guide , from TRB's National Cooperative Highway Research Program, offers a collection of RUC resources, best practices, and sample communication materials for anyone who wants to study RUC or move RUC forward in their state.

The TRB National Cooperative Highway Research Program's NCHRP WebResource 1: Reducing Greenhouse Gas Emissions: A Guide for State DOTs is intended to support State DOTs in their efforts to reduce greenhouse gas (GHG) emissions from the transportation sector by identifying and describing tools, methods, and data sources to assess GHG emissions, evaluate GHG reduction opportunities, and develop a...